front locking hub vacuum fitting

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Jan 3, 2014 | 12:40 PM

psi3000

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Cross-Country

Joined: Apr 2006

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front locking hub vacuum fitting

Does anyone know what size the vacuum tube nipple is for the auto locking hubs on a 4x4? Or where I can locally find one? I got part number f81z4022ba from my local ford parts department but they have to order it. Just trying to find out the nipple or vacuum tube size as I know the screw in part is 1/8 inch NPT. Or better yet anyone know where to get a stainless steel version so it doesnt rust?

Jan 3, 2014 | 01:02 PM

Lost Yankee

Cross-Country

Joined: Jul 2013

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I had the same problem when I changed out my hubs, forgot about it till I saw your post, try a boat dealer if you have one local, If I have any luck I will shoot you a msg.

Jan 4, 2014 | 12:49 PM

Sader

Senior User

Joined: Nov 2008

Posts: 319

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From: near mm217 off I-70 in MO

I used a brass pneumatic fitting. 1/8" MPT x 1/8" barb

Been on for three years, no issues. Could probably find one at your local hardware store. I changed the line as well and secured it to the barb with a zip tie as well.

Cheers

Apr 3, 2014 | 09:25 PM

AlaskanEx

Bleed Ford Blue

Joined: Apr 2009

Posts: 13,578

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From: Anchorage Alaska

this post just saved me a lot of headache! thanks!

Apr 3, 2014 | 10:42 PM

Superduty71

Trailering

Joined: Jan 2014

Posts: 22

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From: CT

For those that are interested.. I installed the stainless steel hose version offered by dieseilsite.com... Been very happy with them so far

Dec 14, 2020 | 06:01 PM

C C Clarke

New User

Joined: Oct 2018

Posts: 11

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From: Ontario Canada

Quote:

Originally Posted by Sader

I used a brass pneumatic fitting. 1/8" MPT x 1/8" barb

Been on for three years, no issues. Could probably find one at your local hardware store. I changed the line as well and secured it to the barb with a zip tie as well.

Cheers

are we talking about the fitting that goes in here

Dec 14, 2020 | 06:02 PM

Dweber85rc

Fleet Mechanic

Joined: Mar 2019

Posts: 1,293

Likes: 164

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Dec 17, 2020 | 07:04 AM

C C Clarke

New User

Joined: Oct 2018

Posts: 11

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From: Ontario Canada

Quote:

Originally Posted by Lance Helmert

I live in Wisconsin so I leave the hubs locked in from Nov or Dec to March or April. I installed plugs in place of the fittings and removed the vacuum lines. I'm not a fan of vacuum operated hubs.

mine have never worked. I pulled apart the hub to replace the needle bearing. After some research, I saw it was common that water gets in the vacuum hole. The airline was literally just stuck in the hole. No fitting. Most of my seals are bad. So I’m gonna just plug it up until next summer when I can rebuild it all.